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Fetch the row which has the Max value for a column
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This will retrieve all rows for which the my_date column value is equal to the maximum value of my_date for that userid. This may retrieve multiple rows for the userid where the maximum date is on multiple rows.
select userid,
my_date,
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from
(
select userid,
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Delete last commit in bitbucket
I made a mistake and I don't know how to delete my latest push in the repository. I pull the latest updates of the app but it has conflicts and I push it to repository.
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API Versioning for Rails Routes
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The original form of this answer is wildly different, and can be found here. Just proof that there's more than one way to skin a cat.
I've updated the answer since to use namespaces and to use 301 redirects -- rather than the default of 302. Thanks to pixeltrix and Bo Jeanes for the prompti...
Can vim monitor realtime changes to a file
My question is similar to this how to monitor a text file in realtime
but I want to do it in vim. I know I can read an opened file use tail -f sample.xml file, and when new content is written to the file, it'll also write the new content to my screen. Can I have vim automatically fill the new da...
In a Bash script, how can I exit the entire script if a certain condition occurs?
...'m writing a script in Bash to test some code. However, it seems silly to run the tests if compiling the code fails in the first place, in which case I'll just abort the tests.
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Calculate the number of business days between two dates?
In C#, how can I calculate the number of business (or weekdays) days between two dates?
32 Answers
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Tree data structure in C#
I was looking for a tree or graph data structure in C# but I guess there isn't one provided. An Extensive Examination of Data Structures Using C# 2.0 explains a bit about why. Is there a convenient library which is commonly used to provide this functionality? Perhaps through a strategy pattern t...
Track all remote git branches as local branches
Tracking a single remote branch as a local branch is straightforward enough.
15 Answers
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What is the difference between XMLHttpRequest, jQuery.ajax, jQuery.post, jQuery.get
How can I find out which method is best for a situation? Can anybody provide some examples to know the difference in terms of functionality and performance?
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How to change font face of Webview in Android?
I want change the default font of webview to a custom font. I'm using webview in developing an bilingual browser app for Android.
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